Check valves

Winfelx ventilation offers a non-return valve steel 100mm.

Check valve for sheaths . Designed for ventilation systems running in a timely manner, the flaps help avoid the entry of outside air into the culture chambers, when the fan stops. Adapted to ducts, 100mm outputs. In steel. Know you crash without crashing! Culture Indoor , the preferred choice of all grow ers for indoor growing.

PVC vent valve 150mm connecting to a jacket, entrance or exit of a culture chamber. Obstructs or releases to suit the airflow. Essential part of a CO2 enrichment.